Improvement in operating grinding-mills



UNITED STATES PATENT OFFICE.

Jhoos Houses, on ALLENTOWN,

PENNSYLVANIA.

Specification forming part of Letters Patent No. 35,444, dated June 3,1862.

To all whom it may concern:

Be it known that 1,. JACOB HoLBEN, of Allentown, in the county of Lehighand State of Pennsylvania, have invented or discovered a new and usefulImprovement in Operating Grinding-Mills; and I do hereby declare thatthe following is a full and clear description of the same and mode ofoperation.

My invention consists in the employment or use of sugar or other similarsubstance or sub- 1 stances for the purpose of cleaning millstones,

enabling the stones to do more and better work than when cleaned intheusual manner, besides efl'ecting a great saving of cost in the timeand labor required to perform the operachinery.

' and always requires one or more of the stones to be removed from itsbearings, (usually the upper one,) requiring extra labor for thispurpose, besides consuming much time, which, with my improved method, iswholly saved.

To enable others skilled in the art to fully understand or practice myinvention or discovery, I will proceed to "describe it.

I run a small quantity of sugar or other similar substance, whether in araw or refined state, into the eye of the upperstonewhile one or both ofthe stones (as the case may be) are in motion. The said substancepassing between the stones is rapidly distributed over the entiresurface thereof, and the result is that the stones are cleaned, andthereby made to out with more case than when cleaned in the usual or byany other method known'to the public.

Instead of sugar run into the eye of the stone, as before mentioned, thestones may be moved apart so as to allow the article to be spread overthe surface or other substance being,

of one of them; or the application of the article may be made in anyother way so long as the object sought to be attained isthe'same.

The sugar or other substance may be used in a liquid or dry state, theeffect in either case being about the same. However, I prefer to use itin a liquid state-that is, by mixing the article with water or anyother'liquor in about the following proportions, namely: one pound ofsugar or whatever other substance may be used to one gallon of water orother liquor. Different proportions will answer the purpose, thoughperhaps not as well. as those which I have named. The sugar or otherarticlebeing mixed and put upon the surfaces of the stones in the mannerbefore explained, as the stones revolve it is distributed over theentire surface thereof, and acts to clean and restore their grindingaction.

Some of the many advantages of this invention or discovery are- 1 First,the stones do not require to be moved from their bearings to be cleaned.

' Second, the dressing or cleaning can be effected without stopping themill.

Third, the cost of dressing or cleaning apair of millstones iscomparatively trifling in comparison with other methods, and when ingood running order the stones will grind a third more flour beforegetting dull than when they are dressed in the usual manner.

Having thus described myinvention or discovery, what I claim as new is-The method herein specified of cleaning millstones.

The above specification of myimprovements in operating grindingmillssigned this 13th day of March, 1862.

JACOB 'HOLBEN.

Witnesses:

Emu. I Brtowiv, J muss M. CRIDLEY.

